AADI RDCP600 Deployment Manual
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Page 42 JANUARY 2010 - TD 220a DEPLOYMENT GUIDE, RDCP6001.9.2 SynchronizationThe two RTCs are synchronized either when the time is adjusted or when the instrument enterssleep mode between recording intervals. When an updated time is entered using the Date &Time adjustment feature in the Control Panel or when connected to a PC using ActiveSync, theupdated time is entered into both the main and the backup RTC.IMPORTANT! Please note the latter case using ActiveSync. If you use ActiveSync to access theRDCP 600 file system from an external PC, ActiveSync will automatically synchronize the clockof the RDCP 600 with that of the PC. This will lead to an incorrect time setting if the clockwithin the PC is not correct.Since the main RTC is more accurate than the backup RTC, the backup RTC is synchronizedwith the main RTC at regular intervals when power is on. This occurs when the system entersthe low power Sleep mode in between recordings.1.9.3 Manual SynchronizationThe backup RTC has a maximum error of 1.53 minutes per month. It is therefore advisable tosynchronize the RDCP 600 clock system if the instrument has been switched off for a longertime period before deployment. Use the Date & Time adjustment feature in the Control Panelfor this purpose. Accurate time bases may be found on the Internet.1.10 Power ConsumptionThe average power drain for the current configuration, is given in the Deployment Setup mainpage (scroll down almost to the end of the page to the Resource use section, see Figure 1-27).Power consumption is an issue when powering the RDCP 600 from a battery.In these cases care should be taken to limit current drain by using configurations that drain lesspower. |
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